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linux/drivers/tty
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Greg Kroah-Hartman 68f4fc9960 tty: Handle problem if line discipline does not have receive_buf 
commit 27cfb3a53b upstream.

Some tty line disciplines do not have a receive buf callback, so
properly check for that before calling it.  If they do not have this
callback, just eat the character quietly, as we can't fail this call.

Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2019-05-02 21:41:26 +01:00
..
hvc xen/events: don't bind non-percpu VIRQs with percpu chip 2015-06-02 12:08:17 +01:00
ipwireless tty: Fix low_latency BUG 2014-02-28 16:31:00 -08:00
serial uart: Fix crash in uart_write and uart_put_char 2019-05-02 21:41:25 +01:00
vt vt: invoke notifier on screen size change 2019-05-02 21:41:26 +01:00
amiserial.c tty/amiserial: avoid interruptible_sleep_on 2014-01-07 17:05:21 -08:00
bfin_jtag_comm.c TTY: bfin_jtag_comm: fix incorrect placement of __initdata tag 2013-09-30 19:09:37 -07:00
cyclades.c tty: an overflow of multiplication in drivers/tty/cyclades.c 2013-12-20 12:21:57 -08:00
ehv_bytechan.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
goldfish.c goldfish: clean up the checkpatch warnings 2014-05-15 13:20:42 -07:00
isicom.c tty/isicom: fix big-endian compile warning 2017-11-11 13:33:48 +00:00
Kconfig drivers/tty: ehv_bytechan fails to build as a module 2014-01-09 17:52:12 -06:00
Makefile tty: handle the case where we cannot restore a line discipline 2018-10-21 08:45:38 +01:00
metag_da.c tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
moxa.c TTY: add tty_port_tty_hangup helper 2013-03-18 16:24:29 -07:00
moxa.h tty: move a number of tty drivers from drivers/char/ to drivers/tty/ 2011-02-22 16:14:56 -08:00
mxser.c tty: mxser: Fix build warning introduced by dfc7b837c7 (Re: linux-next: build warning after merge of the tty.current tree) 2013-05-22 10:26:02 -07:00
mxser.h Fix common misspellings 2011-03-31 11:26:23 -03:00
n_gsm.c tty/n_gsm.c: fix a memory leak when gsmtty is removed 2015-05-28 10:00:01 +01:00
n_hdlc.c tty/n_hdlc: fix __might_sleep warning 2019-05-02 21:41:25 +01:00
n_null.c tty: handle the case where we cannot restore a line discipline 2018-10-21 08:45:38 +01:00
n_r3964.c tty: Always handle NULL flag ptr 2013-12-08 16:56:05 -08:00
n_tracerouter.c n_tracerouter and n_tracesink ldisc additions. 2011-05-13 16:31:00 -07:00
n_tracesink.c n_tracerouter and n_tracesink ldisc additions. 2011-05-13 16:31:00 -07:00
n_tracesink.h n_tracerouter and n_tracesink ldisc additions. 2011-05-13 16:31:00 -07:00
n_tty.c n_tty: Access echo_* variables carefully. 2018-11-20 18:05:30 +00:00
nozomi.c tty: nozomi: avoid a harmless gcc warning 2017-11-11 13:33:47 +00:00
pty.c drivers: tty: Fix use-after-free in pty_common_install 2018-10-21 08:45:37 +01:00
rocket.c tty: remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-08 17:09:07 -08:00
rocket.h tty: move a number of tty drivers from drivers/char/ to drivers/tty/ 2011-02-22 16:14:56 -08:00
rocket_int.h tty: move a number of tty drivers from drivers/char/ to drivers/tty/ 2011-02-22 16:14:56 -08:00
synclink.c synclink: fix info leak in ioctl 2014-03-17 16:13:23 -07:00
synclink_gt.c tty: synclink: avoid sleep_on race 2014-01-07 17:05:21 -08:00
synclinkmp.c synclink: fix info leak in ioctl 2014-03-17 16:13:23 -07:00
sysrq.c sysrq: attach sysrq handler correctly for 32-bit kernel 2017-03-16 02:26:56 +00:00
tty_audit.c audit: anchor all pid references in the initial pid namespace 2014-03-20 10:11:55 -04:00
tty_buffer.c tty: Fix GPF in flush_to_ldisc() 2016-01-25 10:43:37 +00:00
tty_io.c tty: Handle problem if line discipline does not have receive_buf 2019-05-02 21:41:26 +01:00
tty_ioctl.c termios, tty/tty_baudrate.c: fix buffer overrun 2019-02-11 17:53:54 +00:00
tty_ldisc.c tty: Use __GFP_NOFAIL for tty_ldisc_get() 2018-10-21 08:45:44 +01:00
tty_ldsem.c tty/ldsem: Wake up readers after timed out down_write() 2019-04-04 16:13:46 +01:00
tty_mutex.c tty: tty_mutex.c: Fixed coding style warning (using printk) 2012-10-24 11:34:51 -07:00
tty_port.c tty: delete non-required instances of include <linux/init.h> 2014-01-07 17:05:21 -08:00